81603970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{659}}^1$

素因数の和:763

約数の個数: 64

約数和(自身を含む): 176774400

約数和(自身を除く): 95170430

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 61, 70, 122, 145, 203, 290, 305, 406, 427, 610, 659, 854, 1015, 1318, 1769, 2030, 2135, 3295, 3538, 4270, 4613, 6590, 8845, 9226, 12383, 17690, 19111, 23065, 24766, 38222, 40199, 46130, 61915, 80398, 95555, 123830, 133777, 191110, 200995, 267554, 281393, 401990, 562786, 668885, 1165771, 1337770, 1406965, 2331542, 2813930, 5828855, 8160397, 11657710, 16320794, 40801985, 81603970]

約数ペア:

[(1, 81603970), (2, 40801985), (5, 16320794), (7, 11657710), (10, 8160397), (14, 5828855), (29, 2813930), (35, 2331542), (58, 1406965), (61, 1337770), (70, 1165771), (122, 668885), (145, 562786), (203, 401990), (290, 281393), (305, 267554), (406, 200995), (427, 191110), (610, 133777), (659, 123830), (854, 95555), (1015, 80398), (1318, 61915), (1769, 46130), (2030, 40199), (2135, 38222), (3295, 24766), (3538, 23065), (4270, 19111), (4613, 17690), (6590, 12383), (8845, 9226)]